Torch Log Service
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- Documentation
Torch Log ServiceSDK referenceJava SDKUse TLS SDK for Java to create basic resources
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Use TLS SDK for Java to create basic resources
Copy pageDownload PDFUse TLS SDK for Java to create basic resources
In Torch Log Service (TLS), basic resources include projects and topics. This topic offers sample code that demonstrates how to use an SDK to create projects, topics, and indexes.
Before you begin
- Install TLS SDK for Java. For more information, refer to Install TLS SDK for Java.
- Add environment variables such as VOLCENGINE_ACCESS_KEY_ID. For information on how to configure environment variables, refer to Configure identity authentication.
warning
We recommend that you use environment variables to dynamically get identity authentication information such as Volcano Engine AccessKey. Otherwise, hard-coded AccessKey information leads to data security risks.
Creating basic resources
Scenario description
This topic offers sample code that demonstrates how to use the SDK to create a project, topic, and index in a specific Region. The Region where the project is located must be consistent with that you specified when initializing the client. When you create a topic, we recommend that you enable automatic sharding to prevent data read and write speeds from being affected by the limited number of shards in case of a traffic surge. In the following example, both full-text indexing and key-value indexing are enabled. You can configure indexes based on log fields and query and analysis requirements. For information on how to configure indexes, refer to Configure indexes.
Sample code
The following sample code demonstrates how to create a project, topic, and index.
package com.volcengine.example.tls.demo;
import com.volcengine.model.tls.*;
import com.volcengine.model.tls.exception.LogException;
import com.volcengine.model.tls.request.*;
import com.volcengine.model.tls.response.*;
import com.volcengine.service.tls.TLSLogClient;
import java.util.ArrayList;
import java.util.List;
public class Demo {
public static void main(String[] args) throws LogException {
// When you initialize the client, we recommend that you use environment variables to dynamically get identity authentication information such as Volcano Engine AccessKey. Otherwise, hard-coded AccessKey information leads to data security risks.
// If you use Security Token Service (STS), use a temporary AccessKey ID and AccessKey secret, and set VOLCENGINE_TOKEN. If you do not use STS, leave VOLCENGINE_TOKEN empty.
ClientConfig clientConfig = new ClientConfig(System.getenv("VOLCENGINE_ENDPOINT"), System.getenv("VOLCENGINE_REGION"),
System.getenv("VOLCENGINE_ACCESS_KEY_ID"), System.getenv("VOLCENGINE_ACCESS_KEY_SECRET"), System.getenv("VOLCENGINE_TOKEN"));
TLSLogClient client = ClientBuilder.newClient(clientConfig);
// Create a project.
// Specify ProjectName and the optional Description as needed. Specify the same Region as that when you initialize the client.
CreateProjectRequest createProjectRequest = new CreateProjectRequest("project-name", "region", "description");
CreateProjectResponse createProjectResponse = client.createProject(createProjectRequest);
String projectID = createProjectResponse.getProjectId();
// Create a topic.
// Specify parameters such as ProjectId, TopicName, Ttl, Description, ShardCount, AutoSplit, MaxSplitShard, and EnableTracking as needed.
CreateTopicRequest createTopicRequest = new CreateTopicRequest();
createTopicRequest.setProjectId(projectID);
createTopicRequest.setTopicName("topic-name");
createTopicRequest.setTtl(30);
createTopicRequest.setDescription("description");
createTopicRequest.setShardCount(2);
createTopicRequest.setAutoSplit(true);
createTopicRequest.setMaxSplitShard(10);
createTopicRequest.setEnableTracking(true);
CreateTopicResponse createTopicResponse = client.createTopic(createTopicRequest);
String topicID = createTopicResponse.getTopicId();
// Create an index.
// Specify TopicId, and enable full-text indexing or key-value indexing or enable both of them as needed.
FullTextInfo fullText = new FullTextInfo(false, ",-;", false);
ValueInfo textValueInfo = new ValueInfo();
textValueInfo.setValueType("text");
textValueInfo.setDelimiter(",");
textValueInfo.setCaseSensitive(false);
textValueInfo.setIncludeChinese(false);
textValueInfo.setSqlFlag(false);
List<KeyValueInfo> keyValue = new ArrayList<>();
keyValue.add(new KeyValueInfo("key1", textValueInfo));
CreateIndexRequest createIndexRequest = new CreateIndexRequest(topicID, fullText, keyValue);
CreateIndexResponse createIndexResponse = client.createIndex(createIndexRequest);
}
}
Related documents
- After you use the SDK to send an API request, the server returns a response. If the response contains a non-200 status code, the API call fails. To view the error code and error message, refer to API reference.
- The following table describes the API actions involved in the preceding sample code. To view the details of each API action, refer to API reference.
- APIDescriptionAPIDescriptionCreate a project.Create a topic.Create indexes.
- To get the complete sample code of managing basic TLS resources, refer to TLS Java SDK Demo on GitHub.
Last updated: 2025.10.11 16:44:07
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